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參數(shù)資料
| 型號： | TB6556FG |
| 廠商： | Toshiba Corporation |
| 英文描述： | 3-Phase Full-Wave Sine-Wave PWM Brushless Motor Controller |
| 中文描述： | 三相全波正弦波脈寬調(diào)制無刷電機控制器 |
| 文件頁數(shù)： | 11/22頁 |
| 文件大?。?/td> | 305K |
| 代理商： | TB6556FG |
TB6556F/FG
2005-01-19
11
Functional Description
1. Basic operation
The motor is driven by the square-wave turn-on signal based on a positional signal. When the positional
signal reaches number of rotations f
=
5 Hz or higher, the rotor position is estimated according to the
positional signal and a modulation wave is generated. The modulation wave and the triangular wave are
compared; then the sine-wave PWM signal is generated and the motor is driven.
From start to 5 Hz: When driven by square wave (120° turn-on) f
=
f
osc
/(2
12
×
32
×
6)
5 Hz~: When driven by sine-wave PWM (180° turn-on); when f
osc
=
4 MHz, approx. 5 Hz
2. Select drive function
This function can select drive mode.
SS pin
HIGH or OPEN
=
Sine-wave PWM drive (180
°
turn-on mode)
LOW
=
Square-wave drive (120
°
turn-on mode)
Note: If the position sensing signal is f = 5 Hz or lower, the driver is 120
°
turn-on mode even when SS =
HIGH.
3. V
e
voltage command signal function and function to stabilize bootstrap voltage
(1)
Turns off output (gate protection)
(2)
Turns on the lower transistor at the regular (carrier) cycle. (ON duty is approx. 8%.)
(3)
When the voltage command signal is input at Ve
>
2.1 V:
During sin-wave drive, outputs drive signal as it is. During square-drive, forcibly turns on the lower
transistor at regular (carrier) cycle. (ON duty is approx. 8%)
Note: At startup, turn the lower transistor on for a fixed time with 1.0 V
<
Ve
<
2.1 V to charge the upper
transistor gate power supply.
When the voltage command signal is input at V
e
<
1.0 V:
When the voltage command signal is input at 1.0 V
<
Ve
<
2.1 V:
4. Dead time function: upper/lower transistor output off-time
When the motor is driven by sine-wave PWM, dead time is digitally generated in the IC to prevent a
short circuit caused by the simultaneous turning on of upper and lower external power devices. When a
square wave is generated in full-duty cycle mode, the dead time function is turned on to prevent a short
circuit.
Td Pin
Internal Counter
T
OFF
HIGH or OPEN
8/f
osc
1.9
μ
s
LOW
16/f
osc
3.8
μ
s
T
OFF
values above are obtained when fosc
=
4.19 MHz.
f
osc
=
reference clock (crystal oscillation)
(1)
(2)
(3)
100%
2.1 V
1.0 V
5.4 V
Ve
PWM Duty
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TB6556FG(EL,DRY) | 功能描述:馬達/運動/點火控制器和驅(qū)動器 BRUSHLESS DC MOTOR CONTROLLER 3-PHASE RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| TB6556FG(O,EL,DRY) | 功能描述:馬達/運動/點火控制器和驅(qū)動器 3-Phase Full-Wave 12V Vcc=6V to 10V RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| TB6556FG(O8,EL,DRY | 功能描述:馬達/運動/點火控制器和驅(qū)動器 3-phase PWM 252Hz 5V 30mA 6V to 10V RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| TB6556FGELDRY | 功能描述:馬達/運動/點火控制器和驅(qū)動器 Brushless DC Motor Controller RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| TB6557FLG(EL) | 功能描述:馬達/運動/點火控制器和驅(qū)動器 Combination Motor Driver RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
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